htmlb:group -> title instead of htmlb:groupHeader

When you use a htmlb:Group, there are two ways to add text to the group header. You can use

  <htmlb:group title="hello">
  ...

or

  <htmlb:group>
    <htmlb:groupHeader>
      <htmlb:textView text="hello" />
    </htmlb:groupHeader>
    ...

I'd like to change from the first variant to the second, because I want to add a link to the group-header.

Unfortunately, the header is a little higher if you use the secont variant. Is there a way to overcome this problem? Can I make the groupHeader as small as the title?

Best regards,

Daniel